Jesse f



(No Model.)

J. P. BILLMAN. SEWING MACHINE FAN.

Patented May 1, 1894.

UNITED STATES JESSE F. BILLMAN, or

PATENT OFFICE,

LITOIIFIELD, ILLINois.

. SEWING-MACHINE FAN.

SPECIFICATION forming part of Letters Patent No. 519,227, dated May 1, 1894'. 1 Application filed November 7, 1893. Serial No. 490,250. (No model.)

To all whom it may concern: l 3e it known that I, JESSE E. BILLMAN, a citizen of the United States, residing at Litch- .freld 'in the county of Montgomery and,State of Illinois, have invented a new and useful sewing-Machine Fan, of which the following s a specification.

T V Myinvention relates to a fan 'for sewing M machine's, adapted tobeapplied to a rotatory member, such as a pulley or wheel, to provide a draft during the operation of the machine; and the objects in view are to provide means for he adjustment'of the members of the fan t/lncrease or diminish the power of the dra t produced thereby, and to provide slmpleand adjustable means for attaching the. device to a wheel or pulley.

A further object of the invention is to provide means for adjusting or changing the curvature or deflection of the wings toproject the current of air in any desired directio'n.

Further objects andadvantagesof this invention will appear in the following description, and the novel features thereof will be ,particularly'poin-ted out in the appended claimsa l V i In the drawings: Figure 1 is'a side view of a fan embodying my invention, applied in the operative position to a sewing machine.

Fig. 2 isa sectional-view of the same. Fig.-

is a detail view of one of thewings; Fig.4- 1s a simllar view of the'spider.

S milar numerals of reference indicate corresponding-parts in all the figures of the drawings. The fan comprises essentially the longitudinally adjustable members 1, each consistng of a wing ,2, and a perpendicularly-dis posed web or flange 3; These webs 0r flanges are adapted to bearranged in contact in parallel planes, as shown ,clearl'ylin "Fig,-2,-and

they are provided iv ithlongitudinal slots t, i for the reception of an adjusting-bolte; pro- ;vided with a nut G. A washer? is arranged between the head 8, of this belt and the ad jacent surface of the outer web or flange 3.

Thewebs or flanges are provided at their free edges, or the edges opposite to the wings 2,

with lips 9, whereby when the web] or flange" of one member is arranged within the web or.

flange of the other member, it, fitsbetween it v displacement.

' the wing and said lip, and thus holds the-two members from angular displacement.

10 represents a spider, havi-ng the inward ly-divergent legs 11. These legs areprefen ably formed in pairs, the members of each pair being arranged di metrically'opposite each other and of a sing e bar.

bolt 5, by which they are secured to the fan, and they are provided at theirouter ends with concaved terminals or feet 12, to engage the inner convex surfaces of the rim of .a wheel or pulley, as shown clearly in Fig.1. These divergent legs are formed of spring wheels or pulleys of different sizes, and they are held by this spring action from accidental The members are constrilcted of block tin, or similar pliable sheet metal (the wings being integralwith the webs or "fianges) and the wings may be bent or shaped to change their deflection and direct the current of air as desired to suit the position of the operator whensitting in the preferred position. Tfhisis rendered necessary'bythe factthat different. operators assume difierent positions while at work. Furthermore, by means of the slots 4;;the wings may be sepa- The legs are capable of angular adjustment around the steel, whereby they may be contracted tofit rated more or less to give the desired force to the current of air. L

Various changes in the form, proport on and the: minor details of construction may be resortedto without departing from the princithis invention.

claim is- 1. A fan for sewing machines,- having twin" .ple or sacrificingany of the'advantagesof longitudinally slotted wing-bearing meme bers, a spider-having legs to engage the rim .;of awheel or pulley, and a commonbolt for connecting the wing-bearing members and the "legs of the spider, whereby the former are longitudinally and the latter are angularly adjustable, substantially as specified.

. 2. -A fan for sewing machines having twin longitudinally-adjustable members, pliable wings carriedby'said'members and adapted tobe adjustedo'r altered in curvaturede flection, and means for securing the fan to a frotary member-of. a machine, substantially as -.2 v. v r 519,227

1 .3. A'fauiqr sewing' machines having-a spispring-metal legs mounted upon and held in I der consisting ofdivergent spring-metal legs place by said adjusting bolt, provided with provided w'itll'conczrved terminals or feet to concaved terminals or. feet to engage the rim engage the-inner convex surfaces of therim of a wheel or pulley and capable of angular 5 of a. pulley oriwheel each pairof opposite adjustment around said bolt substantially as legs being formed of a. continuous strip of, specified. 2

metal, whereby all of thelegs may be secured In testimony that I claim the feregcing bye single bolt to provide for relative angumy cwn I have hereto affixed my signature 1n lar ad. ustment, substantially as specified. ,the presence of two witnesses.

. 10 4. A'fanfor'sewingmachines comprising 1 twin adjustable wingbearing members'proj JESSE BILLMAN vided with webs or flanges having longitudi- Witnesses: v nal slots, an adjusting bolt engaging said A. JrOALLAHAN,

slots, and a spider comprising divergent. A. 'O. WERSE. 

